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Abstract: In a previous paper 3 we computed cohomology groups H^5 Gamma 0 N, \C,where Gamma 0 N is a certain congruence subgroup of SL 4, \Z, for a rangeof levels N. In this note we update this earlier work by extending the range oflevels and describe cuspidal cohomology classes and additional boundaryphenomena found since the publication of 3. The cuspidal cohomology classesin this paper are the first cuspforms for GL4 concretely constructed in termsof Betti cohomology.



Autor: Avner Ash, Paul E. Gunnells, Mark McConnell

Fuente: https://arxiv.org/



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